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winny
winny
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I am researching about instrument amplifier circuit by use op-amp is LM358.

enter image description here

In this circuit Gaingain is 1.by by Rgain=R2=20k,R1=R3=10k R1=R3=10k.

Testing is define frequency range 1Hz1 Hz-10kHz10 kHz but when this circuit is tested on 10kHz10 kHz sine wave input, see Figfigure below, vout is not correct same sinewave input.

enter image description here

In datasheet of LM358 bandwidth maximum at 1Mhz1 MHz or 100kHz100 kHz.I I have a question that in my range researchresearch LM358 can not working in instrument ampilifier right amplifier?

But when iI am testing LM358 to be buffer input sinewave 10 kHz It canit is working correctly.

I am researching about instrument amplifier circuit by use op-amp is LM358.

enter image description here

In this circuit Gain is 1.by Rgain=R2=20k,R1=R3=10k

Testing is define frequency range 1Hz-10kHz but when this circuit is tested on 10kHz sine wave input see Fig vout is not correct same sinewave input

enter image description here

In datasheet of LM358 bandwidth maximum at 1Mhz or 100kHz.I have a question that in my range research LM358 can not working in instrument ampilifier right ?

But when i am testing LM358 to be buffer input sinewave 10 kHz It can working correctly

I am researching about instrument amplifier circuit by use op-amp is LM358.

enter image description here

In this circuit gain is 1 by Rgain=R2=20k, R1=R3=10k.

Testing is define frequency range 1 Hz-10 kHz but when this circuit is tested on 10 kHz sine wave input, see figure below, vout is not correct same sinewave input.

enter image description here

In datasheet of LM358 bandwidth maximum at 1 MHz or 100 kHz. I have a question that in my range research LM358 can not working in instrument amplifier?

But when I am testing LM358 to be buffer input sinewave 10 kHz it is working correctly.

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EricSphere
EricSphere
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Problem about Instrument amplifier from LM358 at high frequency

I am researching about instrument amplifier circuit by use op-amp is LM358.

enter image description here

In this circuit Gain is 1.by Rgain=R2=20k,R1=R3=10k

Testing is define frequency range 1Hz-10kHz but when this circuit is tested on 10kHz sine wave input see Fig vout is not correct same sinewave input

enter image description here

In datasheet of LM358 bandwidth maximum at 1Mhz or 100kHz.I have a question that in my range research LM358 can not working in instrument ampilifier right ?

But when i am testing LM358 to be buffer input sinewave 10 kHz It can working correctly